1
< c:import url ="/site/All.html" var ="url" />
2
< c:if test ="${ not empty url }" >
3
< x:parse var ="doc" xml ="${url}" />
4
< x:forEach select ="$doc/sites/site" var ="s" >
5
< x:if select ="$s/@id = '0'" >
6
< x:out select ="$s/@id" />
7
</ x:if >
8
</ x:forEach >
9
</ c:if >

2

3

4

5

6

7

8

9

相同結果代碼:
1
<c:import url ="/site/All.html" var ="url"/>
2
<c:if test ="${ not empty url }">
3
<x:parse var="doc" xml="${url}"/>
4
<x:forEach select="$doc/sites" var="s">
5
<x:out select="$s/site[@id='0']"/>
6
<x:out select="./site[@id='0']"/>
7
</x:forEach>
8
</c:if >

2

3

4

5

6

7

8

參考URL:
http://java.sun.com/developer/technicalArticles/javaserverpages/faster/
http://www.mokabyte.it/2002/12/jstl-3.htm